Wax emulsion and process of producing same.



UNTTED STATes Patented January 10, 1905.

PATENT Tricia.

HERBERT H. CHURCH, OF BELLOWS FALLS, VERMONT, ASSIGNOR TO CASEIN COMPANYOF AMERICA, A CORPORATION OF NEW JERSEY.

WAX EMULSION AND PROCESS OF PRODUCING SAME.

SPECIFICATION forming part of Letters Patent N 0. 779,527, dated January10, 1905. Application filed April 5, 1904. Serial No. 201,755.

To all whom it may concern.-

Be it known that I, HERBERT H. CHURCH, a citizen of the United States,residing at Bellows Falls,in the county of Windham and State of Vermont,have invented or discovered certain new and useful Improvements in WaxEmulsions and Processes of Producing Same, of which the following is aspecification.

This invention or discovery has for its object to provide a wax emulsionsuitable for use in the arts, such as in the paper-manufacturing andtextile trades or for laundry use, which will contain a large proportionof parafiin-wax in an emulsified condition, and which emulsion, whilesmooth and soft, may bcproduced at comparatively little cost.

This paraffin-wax emulsion is preferably produced in the followingmanner: To fifty parts, by weight, of paraflin-wax and fifty parts, byweight, of stearic acid are added about three hundred parts,by weight,ofwater. These ingredients are then thoroughly heated until the solidsubstances are com plctely melted. To the hotliquid is then preferablyadded about twenty parts, by Weight, of borax previously dissolved in asmall quantity of water, or instead of the borax, which has an alkalinereaction, a smaller quantitysay about ten partsof an alkali, such ascaustic soda, previously dissolved in water, may be used. The mixtureshould then be kept heated to the boiling-point with continualagitation. This heating and agitation should be kept up for at leasthalf an hour after the addition of the borax and alkali. When the boraxor alkali has first been added, the mixture will froth or foamconsiderably, and it is important to continue the boiling and agitationuntil such frothing or foaming has ceased and which will require atleast half an hour. frothing or foaming has ceased and the product iscooled, the result will be a perfectly smooth and white wax emulsion.

Thr invention or discovery is not to be un- Patent 1. Theherein-described wax emulsion consisting of about fifty parts ofparaffin-wax, fifty parts of stearic acid twenty parts of borax, andwater.

2. The herein-described process of producing a wax emulsion, consistingin melting paraffin-wax and stearic acid in'water, with the aid of heat;then adding an alkaline solution to the mixture; then boiling the saidmixture for half an hour or more, with continual agitation, untilfoaming or frothing thereof has ceased.

3. The herein-described process of producing a wax emulsion consistingin melting paraflin-wax and stearic acid in water, with the aid of heat;then adding borax to the mixture, and subsequently boiling the saidmixture for half an hour or more, with continual agitation, untilfoaming or frothing thereof has ceased.

In testimony whereof I affix my signature in presence of two witnesses.

HERBERT H. CHURCH.

Witnesses:

LOUIS H. SMITH, A. F. GRIoNoN.

When the 4

